pantothenic acid

(redirected from anti-achromotrichia factor)
Also found in: Dictionary, Thesaurus, Encyclopedia.

pantothenic acid

 [pan″to-then´ik]
a vitamin of the B complex present in all living tissues, almost entirely in the form of a coenzyme A (CoA). (See also vitamin.) This coenzyme has many metabolic roles in the cell, and a lack of pantothenic acid can lead to depressed metabolism of both carbohydrates and fats. The daily requirement for this vitamin has not been established, and no definite deficiency syndrome has been recognized in humans, perhaps because of its wide occurrence in almost all foods. Intakes of 4 to 7 mg/day are safe and adequate for adults. Some symptoms attributed to deficiency of other B complex vitamins may be due to a lack of pantothenic acid.

pan·to·then·ic ac·id

(pan'tō-then'ik as'id),
The β-alanine amide of pantoic acid. A growth substance widely distributed in plant and animal tissues, and essential for growth of a number of organisms; dietary deficiency causes dermatitis in chicks, and dermatitis and achromotrichia in rats; a precursor to coenzyme A.

pantothenic acid

(păn′tə-thĕn′ĭk)
n.
A yellow oily acid, C9H17NO5, belonging to and found widely in plant and animal tissues.

pantothenic acid

An essential nutrient involved in nutrient metabolism. Pantothetic acid (vitamin B5) is present in dairy products, egg yolks, leafy greens, legumes, liver and whole grains; it has been used by some alternative healthcare providers to treat allergies, anxiety, colitis, depression, eczema, fatigue, hay fever, hypoglycaemia, urticaria and to stimulate weakened adrenal glands. The recommended daily requirement is 100 mg.

pan·to·then·ic ac·id

(pan'tŏ-then'ik as'id)
The β-alanine amide of pantoic acid. A growth substance widely distributed in plant and animal tissues, and essential for growth of a number of organisms; deficiency in diet causes a dermatitis in chicks and rats and achromotrichia in the latter; a precursor to coenzyme A.

pantothenic acid

One of the B group of vitamins and a constituent of coenzyme A which has a central role in energy metabolism. Deficiency is rare.

pantothenic acid

or

vitamin B5

a water soluble organic acid (C9H17O5N) that is present in all animal tissues, especially the liver and kidney. Pantothenic acid forms part of coenzyme A which, when bonded to acetic acid, forms ACETYLCOENZYME A. The vitamin is present in almost all foods, especially fresh vegetables and meat, eggs and yeast. A deficiency causes nervous disorders with poor motor coordination.

pan·to·then·ic ac·id

(pan'tŏ-then'ik as'id)
The β-alanine amide of pantoic acid. A growth substance widely distributed in plant and animal tissues, and essential for growth of a number of organisms; deficiency in diet causes a dermatitis in chicks and rats and achromotrichia in the latter; a precursor to coenzyme A.